The retailer recently launched the range of produce outside of normal specifications with packs of potatoes and parsnips.
Its commercial director for fresh food Matt Simister said: "Last week we concluded some work with our partner suppliers to extend our retail specifications of strawberries and apples so that we can offer class two products to customers at great value prices.
"This means that we are now taking 95 per cent of our suppliers' strawberries and 97 per cent of our British apple growers' crops."
Tesco is also working with suppliers to find uses for produce below fresh sale specification, for example mashing lower-grade potatoes, or juicing lower-grade apples, he said.
"We've already facilitated the uptake of 35 ton per week from our potato partner Branston into our ready meals partner Samworth Brothers, and we're hopeful that the establishing of a juicing relationship with Scripps, our key grower of British apples, will utilise the remaining 2 per cent of the edible crop."