The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
The Grocer[4] (3 Aug 2021): the bars "will hit the mults from 9 August and the convenience sector from October"; Ferrero says UK "from August 2021".
The brand's UK product page: 90g bars with domes reflecting the praline's shape.[1]
90g bars, seven flavours; UK from August 2021, then Europe, outside Europe in 2022.[1]
UK supermarkets from 9 August, convenience from October, rsp GBP 2 per 90g, backed by a GBP 2.5m push including TV.[1]
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