POST HARVEST PROFILE OF POTATO - Agmarknet

dust and extraneous matters, etc. are taken into consideration. The Agmark gradestandards of Table Potato are furnished below.I) Grade Designations and Definition of Quality of Table Potatoes(Oval or long varieties*)GradedesignationExtraspecialSpecialGeneralReasonablyclean, healthypotatoes, freefrom seriousdefect andsuitable forhumanconsumptionReasonablyclean, healthypotatoes, freefrom seriousdefect andsuitable forhumanconsumptionApplicableto singletuber’ssize(Minimumdiameterin)millimetersConformityto varietyetc.41 mm** At least95% byweight mustconform tothe variety29 mm At least95% byweight mustconform tothe varietyUnder size orover-sizeNot more than2% of the totalweight may passthrough sievehaving circularholes with adiameter of theminimum sizespecified (incolumn 3) for thegrade; includedin this not morethat 0.5% of thetotal weight maypass through a25 mm.meshNot more than2% of the totalweight may passthrough sievehaving circularholes with adiameter of theminimum sizespecified (incolumn 3) for thegrade; includedin this not morethat 0.5% of thetotal weight maypass through a25 mm.meshDefinition of qualityApplicable to quantitiesToleranceDisease +Damage etcNot more than2% of the totalweight mayconsist ofappreciablydiseased,damaged orunsightlypotatoes andincluded inthis amountNot more than2% of the totalweight mayconsist ofappreciablydiseased,damaged orunsightlypotatoes andincluded inthis amountEarth andextraneousmatterNot more than2% may betotal present,thepercentage tobe calculatedon the netweight ofscreenedpotatoes.Not more than2% may betotal present,thepercentage tobe calculatedon the netweight ofscreenedpotatoes.Maximumaggregateof alldefectsundercolumn 5,6& 74% of thetotal weight4% of thetotal weight* The word “Oval or Long”: shall be marked following the grade name on the AGMARK label by means of a rubberstamp.** When the potatoes have been passed over a riddle of greater mesh than 41 mm. the minimum size may at theseller’s discretion be appended to the grade name, e.g. “Extra Special” (51 mm., 57 mm, 64 mm etc.) butpotatoes which exceed 89 mm in their smallest diameter shall be excluded from grading.+ 1. Any disease or defect the presence of which may be established by cutting open the potato shall be taken intoaccount, and potatoes having cuts worm and slug holes penetrating into the flesh shall be regarded as damaged.2. Potatoes affected by greenness superficial disease or damage shall not be regarded as diseased or damagedunless more than 1/10 of the surface is so affected.3. A potato shall only regarded as being obviously affected with the soft rot, if at the time of inspection, it is squashyor the surface is at some part distinctly broken or wet owing to disease.14