Sloes are not coming the same amount every year. They alternate and also depends a lot of the raining season. They need also good sun in the last 2 months before the first freezing night.

The best time to collect is after the first night under 0C.

Try to collect each year from different place.

This is a box that fit 2.5kg of sloes. I usually get 2 of these boxes for 30-40L of total drink. Around 2-3h having fun collecting.