Using either Food Harvester or Iron Harvestor

[D_DI]

The relic increases the amount of food you get by 50%. It doesn’t give you an extra slot for food.
If you compare the amount of food you get when the relic is not on, to the amount of food you got when it was active, then you should see an increase.

You can see some farming data here:

Barry Farmz Here -- Comprehensive data driven farming guide for Season 3, Season 2, Season 1, Elemental Chests, Atlantis Rises, Missions, and more

This farming guide is my best effort to combine all the big farming data projects I could find with all the data I could collect. (Nearly 40,000 for Seasons 1, 2, and 3 as of Late May 2020.) It includes what you can expect to get for all released levels in the game, plus special listings of the best places for filling monster and elemental chests, and for finishing the farming (avatar) missions for S2 and S3, and how Atlantis Rises changes the farming in S2. Barry Farmz Here: Summary – Google …