Wash the samples with soap in a full load.They need friction to be fulled correctly so add towels to fill the machine. Run them through on the shortest hot wash/cold rinse cycle but do not spin dry. Remove from the machine whenever possible during the cycle to check their progress. If they haven't fulled correctly, take one sample out and put the others through the same cycle again. Repeat until you have achieved the effect you want. By removing samples at each stage, you have a record of when the perfect fulling moment happens.
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