An unexpected weight

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An unexpected weight

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  • #659140
    Michael Gilligan
    Participant
      @michaelgilligan61133

      [ For the sake of our Moderators … please keep this technical ! ]

      I recently bought some Conference Pears from Tesco

      These are imported from Belgium and the standard pack weighs 610g

      … The obvious question being … Why ?

      I’m sure we are all familiar with ‘Metric’ weights of 454g and 227g but I cannot see anything special about 610

      MichaelG.

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      #37343
      Michael Gilligan
      Participant
        @michaelgilligan61133
        #659141
        Ian Parkin
        Participant
          @ianparkin39383

          Perhaps 4 ( or however many )pears generally weigh 610 g

          on a different note i bought some safety guard switches (ferroguard) and they were made in Dominican Republic

          not a country i'd think about for other than fruit and veg

          #659142
          JasonB
          Moderator
            @jasonb

            Maybe average of what 4 pears that pass their size criteria weigh.

            Would take a lot of sorting to find 4 pears that weigh a nice round number and too much of a faff to weigh each group of 4, print weight label and charge on a weight basis.

            #659146
            David Noble
            Participant
              @davidnoble71990

              It could be our love of round numbers that makes seem strange.

              #659147
              Michael Gilligan
              Participant
                @michaelgilligan61133

                Fair comments, both yes

                But the weight is explicitly stated [not an ‘average’ or ‘approx’ in sight]

                they also give a size range of 58/68mm and note that ‘This pack contains a minimum of 4 pears’

                It just seems strange and is engineering-ish, as befits the Tea Room

                MichaelG.

                #659150
                Martin Connelly
                Participant
                  @martinconnelly55370

                  This is just speculation.

                  If they are classed by weight then the lower limit for one of the classes may be 150g. To be on the safe side of legality they aim for a minimum of 152.5g. That means 4 pears must weigh at least 610g.

                  There is also the issue of things like pre-packaged fresh meat where they aim for an average pack weight. This average is indicated by an E symbol next to the pack weight. You did not mention if the pack of four pears has this E symbol next to the weight. If the limits of acceptable weight for four pears are 600g and 620g then 610g E may be put on the packs of pears.

                  End of speculation.

                  I notice that if I buy something like a jar of large pickled cucumbers/gherkins they often have a piece that is cut off a whole item to meet the weight or fill the jar. With a fresh pear that is not something you can do.

                  Martin C

                  You mentioned no sign of an average as I was composing this.

                  Edited By Martin Connelly on 05/09/2023 08:59:44

                  #659152
                  Ady1
                  Participant
                    @ady1

                    It will be the E bit, "not less than" which is a strictly enforced weight

                    The little bit of candy in fancy chocolate boxes was in there for that reason

                    They only want to flog 4 packaged pears

                    The law demands a minimum packaged weight

                    Edited By Ady1 on 05/09/2023 09:05:59

                    #659154
                    Bazyle
                    Participant
                      @bazyle

                      Rather unusually I picked up some pears at the community garden on Saturday and have just tried weighing them. Very repeatable narrow range at 830, 820, 810g each so perhaps they can zero in on a particular weight. Did it include the packaging?

                      #659156
                      Ady1
                      Participant
                        @ady1

                        The weight has to be for the consumable

                        There was that water soaked chicken hoo-ha many years ago

                        #659159
                        Michael Gilligan
                        Participant
                          @michaelgilligan61133

                          I will photograph the plastic bag later !

                          Sorry … I thought I had been sufficiently explicit about what was, and was not, stated thereon.

                          MichaelG.

                          #659165
                          Nicholas Farr
                          Participant
                            @nicholasfarr14254

                            Hi, well I usually get a Pack of Packham pears, produce of South Africa, (I don't like Conference pears) these packs just have 550g printed on the packaging, and contain five pears. I've weighed the four that are left with the packaging and it comes to 549g, the packaging weighs just 4g, so assuming the packaging is not included in the weight stated on the packaging, the pear that I had yesterday weighed -3g, which it clearly didn't, as it was about the same size as the four that are left. Often when I get these, the pears are significantly smaller than those that I have at the moment. So my conclusion is that the weight that is printed on the packaging is the minimum weight of the produce you will get.

                            Regards Nick.

                            Edited By Nicholas Farr on 05/09/2023 10:17:14

                            #659180
                            JasonB
                            Moderator
                              @jasonb

                              Michael may be pass some more time by contemplating why they give the nutritional value of a typical pear weighing 133g

                              #659182
                              Michael Gilligan
                              Participant
                                @michaelgilligan61133
                                Posted by JasonB on 05/09/2023 11:23:23:

                                Michael may be pass some more time by contemplating why they give the nutritional value of a typical pear weighing 133g

                                .

                                Presumably because they are Tesco

                                …. and possibly so that they can claim their pears are bigger than typical

                                MichaelG.

                                #659187
                                Peter Cook 6
                                Participant
                                  @petercook6
                                  Posted by JasonB on 05/09/2023 08:18:52:

                                  Maybe average of what 4 pears that pass their size criteria weigh.

                                  Would take a lot of sorting to find 4 pears that weigh a nice round number

                                  I would suspect that the growers/packers grade their pears into very tight weight categories, and then supply to the supermarkets based on specific requirements (size number, price). E.g. Waitrose sell Braeburn apples in two different packs. One contains five smaller apples, and one contains four larger ones.

                                  It would be interesting to know the variance between the individual pears in Michael's pack.

                                  #659196
                                  Michael Gilligan
                                  Participant
                                    @michaelgilligan61133

                                    I have three bags of these pears, each containing Qty.4

                                    Although I have not weighed them, all twelve pears look ‘reasonably’ interchangeable

                                    This bag has the marking 1:3 but the others are marked 1:4

                                    … I know not what that means

                                    MichaelG.

                                    .

                                    img_8835.jpeg

                                    img_8836.jpeg

                                    .

                                    #659211
                                    Nicholas Farr
                                    Participant
                                      @nicholasfarr14254

                                      Hi MichaelG, that 1:3 & 1:4 you have mentioned, could actually be I:3 & I:4, which looking at my previous two week bags that I've fished out of the bag ready to take to Tesco's recycling trolley has H:24 & H:31 and this weeks bag has I:3 on it. I'm guessing these are "display until" dates, as I bought this weeks bag on Sunday the 3rd September, hence, the H denoting August and the I September.

                                      pear bags.jpg

                                      I noticed that your pears have a size from 58 to 68mm, whereas my pears seem to have a weight from 105 to 140g.

                                      I've never really taken much notice of these things before.

                                      Regards Nick.

                                      P.S. My pears are also packed in Welwyn Garden City.

                                      Edited By Nicholas Farr on 05/09/2023 15:50:41

                                      #659237
                                      Michael Gilligan
                                      Participant
                                        @michaelgilligan61133

                                        Thanks, Nick … I wasn’t sure about the 1 or I

                                        and, typically, opted erroneously.

                                        MichaelG.

                                        #659240
                                        larry phelan 1
                                        Participant
                                          @larryphelan1

                                          610mm/24" ?

                                          Just asking ???devil

                                          #659241
                                          Chris Pearson 1
                                          Participant
                                            @chrispearson1

                                            I once had an "engineering" task which was to make a cardboard bridge of a certain width which was to be supported on tin cans (obviously, at each end) and to bear the weight of a third can with a minimum weight of 400 g. The aim was to maximise the length of the bridge.

                                            Clearly, the nearer that I could get to 400 g for the load, the better.

                                            Even ignoring the weight of the tin, I found no produce with a net weight of 400 g. 'Tis odd!

                                            Edited By Chris Pearson 1 on 05/09/2023 18:48:09

                                            #659812
                                            Nigel Graham 2
                                            Participant
                                              @nigelgraham2

                                              Ah, but the Engineering solution is to choose a tin holding something you like, eat the contents, rinse the empty container then fill it with suitable ballast to make 400.0g …….

                                              #659822
                                              Howard Lewis
                                              Participant
                                                @howardlewis46836

                                                Supermarkets specify VERY closely to what levels a product should conform.

                                                Even the number of blooms, and their diameter on a pot plant! (We were told this by a supplier of plants to a supermarket.) Consequently a computer controls the lighting and temperature of the greenhouse, to ensure compliance when the plants are taken for delivery.

                                                So the supplier has to deliver a package whichn meets that specificatioin very closely, if they are to continue as a supplier..

                                                Howard

                                                #659827
                                                Circlip
                                                Participant
                                                  @circlip

                                                  My weekly size '10' Pineapple from the big M varies. Don't know where the 10 originates, Diameter, Length or Weight. On odd occasions, an '8' gets mixed in, yummy.

                                                  Regards Ian.

                                                  #659828
                                                  Michael Gilligan
                                                  Participant
                                                    @michaelgilligan61133
                                                    Posted by Howard Lewis on 11/09/2023 08:24:17:

                                                    Supermarkets specify VERY closely to what levels a product should conform.

                                                    […]

                                                    .

                                                    With your ‘inside knowledge’ Howard … do you have any idea how they achieve the feat that inspired this thread ?

                                                    If every bag of Pears is required to be saleable as 610g … what is the tolerance, how is it specified, and how does the supplier achieve it ?

                                                    A guess would be that the weight must be 610g with a tolerance of say +20 / -0

                                                    [customers rarely complain if they get a little more than they paid for]

                                                    and an even wilder guess is that the packer has a wonderful computerised robotic pear-shuffling machine which can find suitable sets of four or more fruits.

                                                    dont know

                                                    All this for an end-buyer’s price of £1 a bag !!

                                                    If true … it’s an amazing world we live in.

                                                    MichaelG.

                                                    #659830
                                                    Dave Halford
                                                    Participant
                                                      @davehalford22513

                                                      It's going back a bit and times / laws change…..

                                                      4o odd years ago my then local hardware sole trader had some scales that he only used to sell putty by the pound out of a big drum. The weights got putty stuck to them from his hands. Weights and Measures were very unhappy about this and insisted that either he cleaned his weights or took a trip to court.

                                                      So back then at least giving the customer more than expected was frowned upon even though the greengrocer next door had clean weights but had to give you extra for obvious reasons discussed above.

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