American IPA with mango

Steep grain in 3.5lts water at 68 degrees C for 30 mins (remove bag), add 4.5lts of water bring to boil add 1 tub of munton's light malt extract (1.8kg) and boil until foam starts to settle about 15 mins. Start the 60 min boil after this, @60 min add 10g pacific jade, @ 30 mins add 10g citra, 10g zythos,(also add 1 teaspoon of Irish moss at 30 mins)(start to rehydrate yeast at 20 mins) @ 5 mins add 10g zythos and 10g citra, @flame out add 10g zythos and 10g citra. Cooled wort in sink of cold/iced water until it is under 20 degrees and pitched the yeast. After 5 days increased temp to 21 degrees, then after another 48 hours dry hopped with 10g of cascade, 30g citra, 20 zythos. Tasted @ day 5 and it was very bitter. So I bought 3 440g tins of sliced mango, I froze the flesh and added the syrup to the brew. when I dry hopped I added the frozen mango also approx 500g. left for 8 days then bottled. I tasted this yesterday (3 weeks in the bottle) and the mango has smoothed out the bitterness and I am now planing on brewing this again at 23lt as it tastes darn good. If a little hazy.