I have some nice little seedlings of both types of peppers and was just thinking of where to plant them in the tunnel when I read the following in The Fruit and Veg Gardeners Handbook;
"Never grow sweet peppers and hot peppers in the same greenhouse, because the cross-pollination which may occur would have disastrous results"
Now I may be dim but what sort of "disastrous result" could be expected? - will my tunnel explode?