Christos (5885) - Arnhem, NETHERLANDS - DEC 18, 2015
(Jopen Ippon Weiss) Bottle 330 ml at home, served into a weizen glass, ABV 5.4%
Orange coloured body, clear, with a small and thin white head, collapsing unexpectedly fast.
Light wheat on the aroma and basically that’s it.
Taste also of wheat, light sour notes, faint fruits somewhere on the very back.
Thin body, watery, okay carbonation.
Far from a german hefeweizen. DwarfeD (3540) - Amersfoort, NETHERLANDS - SEP 16, 2015
33cl bottle at home. Hazy golden with a medium white soapy head. Light to medium body with low to moderate carbonation. Medium sweetness with some bitter tones. Wheat, banana, hay and herbs. An ok hefeweizen. VincentKabel (263) - Haarlem, NETHERLANDS - JUN 5, 2014
On first sight a typical weizen beer. Hazy light-golden colour with a firm white head. Wheat and a slight citrus fruitiness make the weizen taste, the Jopen-own herbs make this a Jopen-weizen. A good beer with a definite own character. Something often missed in the category of weizen beers. A summer favorite. MrHangover (4693) - Den Haag, NETHERLANDS - APR 17, 2014
Bottle. Pours a hazy light golden beer with a medium sized white head on top. Aroma of banana, fruity yeast and something strange. Quote bland and boring in the aroma. Flavor has some light lemon touches alongside some banana and subtle wheat. Typical hefeweizen in my book, only not all that impressive. Soft carbo, short light sweet aftertaste. Meh. gunnfryd (15180) - Kristiansand, NORWAY - APR 7, 2014
Bottle.Golden colour with a white head. Aroma is citrus, malt, wheat, banana. Flavour is citrus, malt, hop, wheat, banana, spices. Medium body. Ordinary beer.
__Rb81 (789) - NETHERLANDS - APR 5, 2014
Bottle at home. Pours a hazy gold with a white head. Sweet, fruity aroma of banana and yeast. Taste is banana, yeast, bit of a hoppy, banana, aftertaste. Nice, but a bit on the thin side. JulienHuxley (5910) - Sherbrooke, Quebec, CANADA - MAR 30, 2014
On tap at Arendsnest. Hazy very pale yellow pour with thin white head. Aroma is fruity, light banana, orange zest, light lemony notes. Taste is sweet, banana, light orange juice like tangy acidity. Palate is a bit thin, medium carbonation. Refreshing but has a few annoying off aspects that keep it from high levels of enjoyability. tricksta_p (5029) - Steenwijk, NETHERLANDS - MAR 29, 2014
Aroma of wheat, yeast and banana. Flavour is similar. A refreshing Hefeweizen, but a bit on the mediocre side. fonefan (50752) - VestJylland, DENMARK - MAR 18, 2014
jmgreenuk (9872) - Kuala Lumpur, MALAYSIA - FEB 20, 2014
[ As Jopen Ippon Weiss ].
ABV: 5.4%. Unclear medium orange yellow color with a average to large, frothy to creamy, good lacing, mostly to fully lasting, white to off-white head. Aroma is moderate malty, wheat, moderate yeasty, sweet yeast, banana notes. Flavour is moderate sweet with a average duration, sweet malt, sweet yeast. Body is medium, texture is oily to watery, carbonation is soft. 
Bottle from Biernavigatie. Poured a hazy light amber with a thin white head. The aroma is crisp dry yeast and light banana. The flavour is light sweet acid citrus with a yeasty banana veggie palate. Medium bodied with average carbonation. Not so bad but ultimately and average weisbier.