80% of British food is imported so there will be food shortages if there's a no-deal Brexit
Some food might be labeled as made in UK, but in terms of ingredients (especially in winter time), up to 80% of ingredients are imported to UK.
Tea for example is quite an export market for UK, but UK doesn't grow any tea whatsoever, it's all imported and then produced into teabags.
Brexit will finally fully happen on January 1th 2021, middle of winter.
Brace for impact and store up all your freezers or buy more freezers and store them up too.