More than 400 workers at the Bridgwater based juice giant Refresco Gerber, in south west England, struck for 36 hours from Tuesday of this week.
The Unite union members have announced eleven 36-hour strikes over ten weeks.
Bosses have introduced cuts to shift and sick pay, imposed new shift patterns as well as cuts to overtime and bank holiday pay, and holiday entitlements. The juice maker produces supermarket own brand products for Waitrose, Asda and Tesco.
The production operators, engineers and warehouse workers plan a further ten 36-hour walkouts beginning on 2, 4, 12, 18 and 27 February, 2, 12,18, 24 March and 1 April.