Shopper Cornelius Price admitted criminal damage after throwing a temper tantrum in the Welsh superstore and spilling a six pint bottle.
He was allegedly verbally abusive and later escorted off the premises.
Julie Sullivan, prosecuting, told a magistrates court: "He was told to return the milk he was holding and leave the store and he threw it at the floor in temper.
"He was verbally abusive and escorted off the premises. £1.50 compensation is requested for the milk."
Phil Sherrard, defending, said: "This is minor criminal damage. He knows he should have been more careful with the milk."
In a police interview, Price said he had thrown the carton towards a store manager and told him to "catch it" when it "accidentally" spilled on the floor.
The unemployed man, 40, was ordered to pay a total of £181.50, including £1.50 compensation for the spilled milk, a £20 victim surcharge, £85 in court costs and a £75 fine.
The money will be taken out of his benefits at £10 each fortnight.
Being compensated for £1.50 for spilled milk follows a particularly rough year for Tesco, prompting fears about its future performance.
In September Tesco's chairman was forced to resign as the supermarket revealed that its pre-tax profits had plunged by a record 91.9% and its £250m accounting scandal was bigger than previously thought.
Britain's biggest supermarket admitted its pre-tax profits for the first half of the year had fallen to £112 million, with its investigation revealing it had previously overestimated profit expectations by £263 million.
Tesco's UK like-for-like sales were down 4.6% for the six months to August 2014 amid "strong competition across the grocery market", showing that the troubled grocer is still being battered in a price war and suffering from the discounters Aldi and Lidl.