Jammin' Jars Slot

Item: Jammin' Jars
Rating: 4.7

4.7/5

Published Date · June 6, 2023 · Last Updated · Nov. 5, 2026

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How to play
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Jammin' Jars Slot Review

Push Gaming's 2018 disco cluster slot: fruit on an 8x8 grid, Jam Jar wilds that carry their own multipliers and a free games round where the jars stay put.

Jammin' Jars Slot Overview

A disco ball hangs over a wall of blue and purple lights, and the fruit bowl has taken over the dancefloor. Strawberries and plums crowd an 8x8 grid while a striped jam jar with a grin shuffles between them. One round can pay up to 19,998.45x your stake.

Push Gaming released Jammin' Jars in September 2018, and the rules are short. It pays on clusters of five or more matching fruits, which drop out after a win to make room for new ones. The Jam Jar is both the wild and the scatter, with a multiplier of its own. The studio rates volatility as high and gives 96.83% as the top RTP, with a 94.25% version too.

Jammin' Jars Slot Details
Paylines	Cluster Pays
RTP	96.83%
Volatility	High
Jackpot	x
Minimum Bet	x
Maximum Bet	£5
Maximum Win	19,998.45 x
Software Provider	Push Gaming
Themes	Fruit, Music
Design and Layout	Scatter Symbols Slots, 8 Reel Slots, Wild Symbol
Features	Bonus Round, Multiplier, Free Spins

Jammin' Jars takes one cascade to learn. The Jam Jar is wild and scatter at once, and its multiplier rule makes sense the first time you see it. The free games give the jars room to grow, yet six spins is a short window on a game Push Gaming rates as high volatility. Players who want a bonus that grows spin by spin, and accept high volatility as its price, get one here. We mark it down for one thing: the 2.58 points between the two RTP versions the studio lists.

4.7/5

Pros

Jam Jar multipliers climb to 49x per jar

Jars and multipliers carry through all six free games

96.83% RTP at the top setting

Rainbow Feature can turn a dead spin into a cluster

Cons

Some casinos run the lower 94.25% RTP version

Only six free games, and the rules list no extras

No Rainbow Feature during the free games

How To Play Jammin' Jars Slot

Jammin Jars cascade — Cascading Reels in action

Grid	Wins	Max Bet (UK)
8x8	Clusters of 5 or more	£5.00

Jammin' Jars Basic Rules

Choose your total bet and spin. Any five or more matching fruits that touch up, down or sideways form a cluster, and one fruit can belong to more than one cluster at once. Winning fruits disappear, everything above slides down and new fruit drops in from the top, so one spin can pay several times.

UK rules cap each spin at £5, or £2 if you are 18 to 24.

The Jam Jar stands in for every fruit and doubles as the scatter for the free games.

Jammin' Jars Slot Paytable & Symbols

The table below follows Push Gaming's own paytable at a 1.00 bet in play money, so each figure also works as a multiple of your stake, for that many matching fruits in one cluster. Strawberries pay best, 100x for 25 or more and 1x for five. Blueberries pay least, 10x for 25 or more and 0.1x for five, with oranges, raspberries, apples and plums in between.

Name	5 Symbols	6 Symbols	7 Symbols	8 Symbols	9 Symbols	10 to 11 Symbols	12 to 14 Symbols	15 to 19 Symbols	20 to 24 Symbols	25+ Symbols
Strawberry	1x	1.5x	2x	2.5x	3x	5x	10x	20x	40x	100x
Orange	0.5x	0.75x	1.25x	2x	2.5x	3x	6.25x	10x	25x	62.5x
Raspberry	0.25x	0.5x	0.75x	1x	1.25x	2x	4x	7.5x	15x	37.5x
Apple	0.15x	0.2x	0.4x	0.6x	0.8x	1x	3x	5x	10x	25x
Plum	0.15x	0.2x	0.4x	0.6x	0.8x	1x	3x	5x	10x	25x
Blueberry	0.1x	0.15x	0.2x	0.3x	0.6x	0.8x	1x	3x	4x	10x

Jammin' Jars Slot Features

Jam Jars on the Move

A Jam Jar that helps a win does not leave with the fruit. It jumps at random to an empty square beside it, then holds still while the grid collapses. Every jar starts at 1x and adds one to its multiplier after each cascade it helps to pay, up to a limit of 49x. The more wins a jar joins, the more the next cluster through it pays. In the base game the board is cleared at the start of each spin, so a jar and its multiplier only last until the cascades run out.

Rainbow Feature

When a spin or a cascade pays nothing, a rainbow can sweep across the screen at random and drop one or more giant fruits of a single kind. Every square a giant fruit covers turns into that fruit, which can rescue a spin that was going nowhere. Jam Jars are left as they are, and the rainbow never shows up in the free games.

Jammin' Jars Slot Bonus Features

Free Games

Three or more Jam Jars anywhere on the grid award six free games. The jars still hop to a new square after each win, but they are no longer cleared between spins: fresh fruit cascades in around them. Every jar stays for the rest of the round, along with any that land later, and their multipliers keep climbing. This is the only part of the game where a multiplier can grow from one spin to the next.

The round is a slow build. Early spins plant jars and later spins pay through them. When a cluster runs through several jars, each jar's multiplier applies to that win.

The bonus buy isn't available at UK-licensed casinos.

Our Verdict Six free games, and the rules list no way to add more. That is a short round. Every jar you land stays on the grid until it ends, though, and carries its multiplier from one spin to the next, so we still think well of the free games.

Jammin' Jars Slot RTP & Volatility

RTP	Variable RTP	Volatility	Max Win
96.83%	Yes	High	19,998.45x stake

The studio's game page gives two RTP settings, 96.83% and 94.25%. At 96.83%, the RTP sits above the 96.00% median of the 392 slot reviews we sampled (October 2026), while the 94.25% version sits below it. Look for the RTP on the game info screen.

Our Verdict At 96.83%, the RTP is a plus. Push Gaming lists a second setting at 94.25%, though, and on that version the theoretical return on every £100 you stake drops by £2.58. We count that gap against the game.

Jammin' Jars Slot Graphics & Audio

Graphics

The grid sits in front of a wall of light panels in blue and teal, with spotlights sweeping down and the logo pinned to a disco ball in the top left. The fruit are glossy and plump. Each jar wears rainbow stripes and a cartoon grin, with its multiplier printed on the label. When the free games start, the wall turns pink.

Jammin Jars jars land — Jars in rainbow stripes

Jammin Jars free games pink wall — The wall turns pink in free games

Jammin Jars free games start — Multipliers on the jar labels

Audio

Push Gaming describes the soundtrack as disco-themed, with funky beats. If it starts to grate, the speaker button at the bottom left mutes the game.

Our Verdict Push Gaming tells its disco joke with a straight face, and the art does a practical job underneath. Six fruits in strong, separate colours stay easy to tell apart across 64 squares, and the striped jars stand out from all of them. That helps when you are tracking multipliers.

Jammin' Jars Slot on Mobile

Push Gaming launched Jammin' Jars as a mobile-first game, which suits a slot that looks like a phone puzzle game with a disco ball on top. You can play it in a mobile browser or on desktop.

Jammin' Jars FAQs

How do the Jam Jar multipliers work?

Each jar starts at 1x and gains 1x every time it helps a cascade pay, up to 49x. The multiplier applies to every cluster win the jar is part of.

What is the RTP of Jammin' Jars?

96.83% at the top setting, with a 94.25% version also on Push Gaming's list. The game info screen shows the RTP.

What is the max win on Jammin' Jars?

The rules cap a single round at 19,998.45x your bet. Push Gaming's game page lists 19,998.5x as its highest observed win.

How do you trigger the free spins in Jammin' Jars?

Land three or more Jam Jars anywhere for six free games. Jars are not cleared between free games, so their multipliers carry through the round.

What does the Rainbow Feature do?

After a spin or cascade with no win, it can drop giant fruits at random, and every square they cover turns into that fruit. It does not run during the free games.